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http://dx.doi.org/10.3745/KIPSTC.2003.10C.3.325

Asynchronous Cache Invalidation Strategy to Support Read-Only Transaction in Mobile Environments  

Kim, Il-Do (해군사관학교 전산과학과)
Nam, Sung-Hun (해군 해병대 제 6여단통신대)
Publication Information
The KIPS Transactions:PartC / v.10C, no.3, 2003 , pp. 325-334 More about this Journal
Abstract
In stateless server, if an asynchronous cache invalidation scheme attempts to support local processing of read-only transaction in mobile client/sever database systems, a critical problem may occur ; the asynchronous invalidation reports provide no guarantees of waiting time for mobile transactions requesting commit. To solve this problem, the server in our algorithm broadcasts two kind of messages, asynchronous invalidation report to reduce transaction latency and periodic guide message to avoid the uncertainty of waiting time for the next invalidation report. The asynchronous invalidation report has its own sequence number and the periodic guide message has the sequence number of the most recently broadcast asynchronous invalidation report. A mobile client checks its cache validity by using the sequence numbers of these messages.
Keywords
Mobile Transaction; Asynchronous Invalidation Report; Guide Message; Cache Consistency;
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